/*
 * Copyright (c) 2011 Nathan Byrd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package org.stackconfig.web.gwt.client.places;

import com.google.gwt.activity.shared.Activity;
import com.google.gwt.place.shared.Place;
import com.google.gwt.place.shared.PlaceTokenizer;
import com.google.inject.Provider;
import org.stackconfig.web.gwt.client.activities.BaseActivity;

/**
 * A type of GWT Place that has-a activity
 */
public abstract class ActivityPlace<S extends BaseActivity> extends Place {

    protected Provider<S> activityProvider;

    public abstract static class Tokenizer<T extends ActivityPlace> implements PlaceTokenizer<T> {
        private Provider<T> placeProvider;

        public Tokenizer(Provider<T> placeProvider) {
            this.placeProvider = placeProvider;
        }

        @Override
        public T getPlace(String token) {
            T place = placeProvider.get();
            place.init(token);
            return place;
        }
    }

    public abstract void init(String token);


    public ActivityPlace(Provider<S> activityProvider) {
        this.activityProvider = activityProvider;
    }

    public Activity getActivity() {

        return activityProvider.get().init(this);
    }


}
